Air valve



L. W. GREVE.

MR VALVE.

APPLICATION FILED MAY 23. 1918.

Patented Aug. .15, 19-22.

0 z 2 m 4 z w. g ---q M w moo 7, 3 '2 To all whomz't may concern:

permit leakage;

LIME 5T r001: "COMPANY, or CLEVELAND,

' v i a nvarivn Beaitlznown that 1, Louis W. GREVE, a, citizen of the United; States, residing at Cleveland, in the county ofCuyahoga and State of Ohio, have invented a which the following fis anfull, clear, land exact description.

This invention relates to a valve adapted part cularly as an air valve, and haste-r its principal object the provision of a valve which is simple in construction, durable and eflicient, and one which will remain tight in tliejsense that the movable valve member. will not by reason of wear become loose and -The invention maybe briefly summarizedas consisting in certain novel ,details of con" struction and arrangementsof parts which willbedescribed .in the specification andiset forth in the appended claims.

In the accom-panyingsheet of drawings,

a r, valve embodying my invention, vportions ofthe, supply and, outlet pipes being shown w 3y dotted linesyFig. 2- is a cross-sectional view substantiallyalong the irregular line 22,of Fig; 1; and Fig. 3' is a longitudinal sectional view of the movable-valve member.

' The valve embodying my invention corn- ".pilSGS a valve body 10 having an inlet end 11. threaded or otherwise ply pipe l2ishown bydotted lines Directly inline-With, the inlet end 11, the inner chamnber of the valve body is. formed into a ta pered or eonical'valve' seat 13, having, in its sidewall anelongated rather narrow port 14t The seat 13: is engaged by a tapered rotar-y valve l5,:the taperof the seat and valvebeing-such that, the largeiendofthe valve is toward the inlet endll. The opposite end 16 of the valve is reduced and extends through a. relatively small opening directly opposite, or in linewith the opening at the inlet end of the valve body, the reduced end 16 being appropriately shaped to receive a suitable handle or other valve operating member 17 which may beseoured in place by a pin 18 or otherwise. i i The movable valvemember hasa passageway 19 extending axially inward from its large end, and then extending laterally to the tapered surface where'it is formed into an elongated narrow port 20, the passage- Specificatioii or Letters Patent.

Application' filed, May 23,

As will certain new and useful Improvement in Air Valves, oi

'- pipe 23, which like the pipe l2-is d0tted..lines;- The outlet'22 is not only dis- F'gi-lis a longitudinal sectional view of an appropriately shaped to permitconnection withan air sup permit air to be exhaustedfrom' 'tl 01110, A coRPoRa'rIoN OE-OHIO. l

preferably circular and gradually; mer

into the narrowVelongatedlateralbport: 20.

wallof-the valve member is adapted. to be placed in registration with the port l4; in the 3 side wall of the tapered seat to permitairvto flow through thevalve and to be placed out of registration so as to l by givingth'e' valve member a-quarter turn, The two ports 14 and 20 are preferably the same 'sizeand correspondingly shaped; t3

The valve body lO is provided with a lateral extension 21- with an inner.- passageway -which is'adap'ted to communicate ,with'tlie passageway leading from the inletjend of be obvious; the port 20 in the side a Patented Aug; '15, 1922; i'e a' Serial No. 236,110, it i I way 19 at the largeend of the valve 1 I s stop the flow of air 7 the valve body through the port ll and this;

extension terminates in an outlet-22, thread ed orotherwise appropriately shapedto per-1 mit connection with an outlet or air delivery sh own by placedla'terally from the inlet 11, but the axis ofthe outlet is parallel, or substantially parallel to theaxisof the inlet, but while the parallelism of the axes of the outlet and inletis preferable, it is notessentiaL The pas-f:

sageway orchamber in the extension 21lead-ipands from the port l lto the outlett; v

The tapered valve member" 15 is preferably provided with; waste passagewaystto atpart of the chamber to which the outlet pipe. 23/ is. connected when thdvalve is? closed, this wastepassageway' which is shown at 24-, extending inwardly from the reduced end-of. the valve member, and oppositethe port 20 being branched and terminating in twol spaced ports 2am of whichv will be placed:

ing to the outlet gradually-Qenlarges voifex-j. 4

in communication with theport il l'and pas-f sage-wayin the extension21 when theavalve is closed. The "branching'of the waste pas sagew ayandj the provision of the two ports l 25 is forthe purpose of permitting waste of air from the outlet side of the valve body when the 'valveis closed, regardless of whether the valve is turned to the left in closing.

The simplicity and durability of thisv valve are believed to be apparent from the drawings, and it will be seen that the valve- 7 v i will remain tightly seated regardless of wear, because the enlarged end of the valve is toward the air inlet or supply pipe so that to the right or ewitli said inlet end valve seat, and a tapered valve engaging valve in the inlet and outlet the pressure of air at all times has a tendency to seat the valve andkthuspress it firiri-ly' against the tapered seat.

It might'beexplain'ed that the portions of the inner passageway of the sides into the narrow communicating port, and the merging of the relatively large opening at the large end of the valve into the narrow elongated lateral or bearing'space to" prevent leakage-between the'p'ort in the valve and valve body whenthe. valve is turned to closed or oiiposition. Y

While I have shown the preferred form of my invention, 1 do not wish tobe eonfined to the precise details shown, but aim in my claims to cover such minor variations on modifications as do not involve a departure from the spirit and scope of my inventionin-its broadest aspects.

- Having desaribed'my invention, 1 clann: 1. A valve comprising a valve body having aninlet end with a portion to which a pipe connection may be made andmerging into a tapered" valve seat which is in line and is provided with an elongated lateral port, and said valve body having: a lateral extension terminating in an outlet end to which a-pipe connection may be made,-and provided witha passageway which leads "fronrsaid port and at said port is narrowed and elongated in sub= stantial conformity with the shape of the aort and WlClQIliH as it a a roaches the outlet end, and a tapered valve engaging said seat and having its large end toward the inlet end of the valve body and having a reduced operating end projecting from the valve y, tending from the large end and] alateral elongated opening adapted' to register with said port in the seat.

2. A valve comprising-a valve body having. an inlet end to which a pipe connection made and merging into taperedmay be valve seat in line with said inlet end, the large part of the seat-being toward the inlet, and said valve" having a lateral extensionterminating in an outlet end to which apipe connection maybe made, the inlet and outlet portions having a narrow elongated communioatlng port inthe taiiered the merging of port are to provide ample wall 7 the port in the said valve having passageway exsaid seat with its large'end toward the inlet, and with a reduced part projecting from the valve body, said valve having amainpassageway ir'ornits large end'terminating in a narrow elongated lateral outlet port adapted to register with said port in the valve seat said valve having a waste passageway, ex: tending from the reduced end inwardly and terminating in the tapered wall of the valve at one side of the main passageway.

3. A valve comprisinga valve body having an inlet end to which a pipe] connection may be made'and merging into a tapered valveseat in line with said inlet end, the enla inlet, and said valve body having a lateral extension terminatmg in an outlet end whose axis is substantially parallel to the-axis of ed part of the seat being toward the 70 the inlet end, the inlet and outlet -portions facing in opposite directions and having a: communicating port in' the taperedivalvei seat, and a tapered valve engaging said seat and the valve body at, the sideol theoutlet end,

and said valve member. having awaste passageway extending from the reduced end in-" wardly and then laterally to the tapered wall ofthe valve. v

ii A valve coinprisingja valve body having" an inlet opening and tapered valve seat in line with said 'end' to whicha pipe con-'' nection may be made and having a" narrow elongated P'01il 1n"1l3S SlClQ wall; and sald valve body havin an outlet" portion with having a reduc'edp'art projecting from a passageway leading trom' said port and,

expanding into an outletopeningwhich is laterally displaced with reference to the inlet opening, the inlet and outlet openings. fa. 9' in opposite directions andha ving sub ntially parallel axes, and a tapered rotary va-lveengaging said seatand having its largeaendtowardtlie inlet opening and its small and extending through the valve: body and adapted lJ'OI'BTfC-Yl'VG an actuating, JL'il'lbfil', said 'valve-havinga passageway extending ax i p I all from the large end "and: convergingand terminating in: a narrow elongated laterali port in its side of the samesize and shape as the lirst'nan'ied port adapted to beplaced into and out of registration with the firstinamedport. H i

1 In testimonywhereoil hereuntofafiix my signature; 

